Home / 739,955.34-1,021,139.27-400,423.59

Finding the Fourth Proportional to 739,955.34, 1,021,139.27 and 400,423.59

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Solution

The fourth proportional to 739,955.34, 1,021,139.27 and 400,423.59 is: 552,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,955.34 : 1,021,139.27 = 400,423.59 : x
  2. Step 2: Convert to fraction form
    739,955.34/1,021,139.27 = 400,423.59/x
  3. Step 3: Cross multiply
    739,955.34x = 1,021,139.27 × 400,423.59
  4. Step 4: Simplify right side
    739,955.34x = 408,888,252,383.38
  5. Step 5: Solve for x
    x = 408,888,252,383.38/739,955.34
  6. Step 6: Final answer
    x = 552,585.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.